案例:jQuery案例     状态:可编辑再运行    进入竖版
 运行结果 
x
 
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<html>
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<head>
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<script type="text/javascript" src="/js/jquery.js"></script>
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<script type="text/javascript">
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$(document).ready(function(){
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  $("button").click(function(){
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    x=$("li").toArray()
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      for (i=0;i<x.length;i++)
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      {
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      alert(x[i].innerHTML);
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      }
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  });
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});
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</script>
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</head>
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<body>
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<button>输出每个列表项的值</button>
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<ul>
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<li>Coffee</li>
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<li>Milk</li>
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<li>Soda</li>
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</ul>
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</body>
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</html>
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